Solid RED light after partial charging with portable charger...

[pfbz]

I've had my R1T about two months. I home charge with a NEMA 14-50 receptacle on a 50A circuit, usually to 85% but occasionally to 100%. Never had an error or problem.

Last night I set it to charge to 100% for a longer trip today, this morning I was greeted with a solid red light and charged to only 90%.

The Rivian owners manual has the very helpful information:

Red (solid): Not Working

I plugged it back in for tonight, so far charging fine, has anyone else had the solid red light and it stop charging before completion? Fortunately I ended up not needing that extra range, but would like to be comfortable that it will charge fully overnight if needed...

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[AltaTruck]

I had the same thing happen back in March at a campground. I dissconnected it and repluged it , and it started again up to full charge. I have no idea what caused the fault. I mentioned it on a service ticket but never got an answer one way or the other.

 

[pfbz]

OK, will ignore until/unless it happens again...

 

[Mark_AZR1T]

Solid Red typically means the wall mount exceeded a current value or other resistance load somewhere and shut the unit down. I had this happen on my 48A direct wire Rivian Wall Mount. It would go red after a period of time with the truck set at 48A. It worked perfectly for 3 months prior to this. Dropping the truck manually to 38A solved the issues and Rivian warranty replaced the box.

 

[manitou202]

I’ve had EVs since 2013 and it happens from time to time. Something in the electrical circuit had a hiccup and trip either the charger or the car. As long as charging continues to work and it doesn’t happen frequently, I wouldn’t worry.

As Mark suggested above it’s not a bad idea to charge at a low rated amperage unless you need the full amps. I have mine set to 24amps and my Polestar on our second charger set to 16amps. No need to stress the electrical system.

It would be nice if Rivian added notifications to the charging app. Optional notifications when finished or stopped charging.

 

[R1Tom]

I never had this issue and now 3 times in past month or so...come out to a red ring truck only partially charged. A push notification would sure be nice if the truck or Rivian charger are going to be over picky about whatever it seems they are being over picky about. 11k before first incident.

 

[Cosmacelf]

As Mark suggested above it’s not a bad idea to charge at a low rated amperage unless you need the full amps. I have mine set to 24amps and my Polestar on our second charger set to 16amps. No need to stress the electrical system.

That is a very good idea. I’m dropping my amps down tonight!

 

[LDove]

So….

I just had this happen to me. Our wall charger has been working perfectly for the 6 weeks we’ve had the R1S, and suddenly we’re only getting a solid red light and no charge.

I believe that I have the reason and solution: over the 6 weeks we have been using it, the hose has been getting twisted more and more with out us realizing it (it’s not as obvious as a kink in a garden hose). So I took the minute to unwind the hose, plugged it back in, and magic - the green light appeared and it’s charging perfectly.

Watch out for the coiling of the hose!!!!

 

[Joe schmoe]

I never had this issue and now 3 times in past month or so...come out to a red ring truck only partially charged. A push notification would sure be nice if the truck or Rivian charger are going to be over picky about whatever it seems they are being over picky about. 11k before first incident.

This is an excellent idea. My Tesla has notified me when charging is interrupted (it's a setting you can toggle) for as long as I can remember.

 

[Ceejay]

I'm getting a charging error on my Rivian 2025 Large Pack R1T when trying to charge via my Rivian portable charger cable into an EV-rated NEMA 14-50 outlet powered by EG4 inverter and EG4 batteries (offgrid house). This is the second red charging light event in the last 2 weeks...

A couple of weeks ago, I was getting errors (red light on truck and on charging cable) with the 240v outlet, and then also with the 110v outlet, but restarting the inverter seemed to have solved the problem.

This time, I'm just getting the red light on the truck, and even after restarting the inverter and batteries, and also doing a hard reset on the truck, no luck... though I am able to charge on the 110v outlet at the moment...

Grrrrr.

Not sure at the moment if this is an issue on the power source side (EG4 inverter and batteries) or on the vehicle side.

If anyone has any tips, please share, thanks in advance!

 

[HaveBlue]

Try dialing back the current. Don't plug into the car until the portable charger has completed its boot diag. Check that you have proper grounding on the egc.

 

[Ceejay]

I'm getting a charging error on my Rivian 2025 Large Pack R1T when trying to charge via my Rivian portable charger cable into an EV-rated NEMA 14-50 outlet powered by EG4 inverter and EG4 batteries (offgrid house). This is the second red charging light event in the last 2 weeks...

A couple of weeks ago, I was getting errors (red light on truck and on charging cable) with the 240v outlet, and then also with the 110v outlet, but restarting the inverter seemed to have solved the problem.

This time, I'm just getting the red light on the truck, and even after restarting the inverter and batteries, and also doing a hard reset on the truck, no luck... though I am able to charge on the 110v outlet at the moment...

Grrrrr.

Not sure at the moment if this is an issue on the power source side (EG4 inverter and batteries) or on the vehicle side.

If anyone has any tips, please share, thanks in advance!

Have managed to charge all night on 110v.
Today will test vehicle charging at a DC fast charger and a public AC level 2 charger.
By the way, I have tried throttling down amps when charging my vehicle at home on 240v/ level 2.

 

[Ceejay]

Try dialing back the current. Don't plug into the car until the portable charger has completed its boot diag. Check that you have proper grounding on the egc.

I have routinely tried to dial back current, though always after plugging in. I will see if I can do prior to plugging in, perhaps through the scheduling feature.

Please explain your first suggestion of not plugging in vehicle until portable charger has completed its boot diag (diagnostic?). My procedure is to have the portable charger plugged in.... it has a white light at this point, and then i plug the charger into the vehicle, and then the vehicle will pulse white for a short period (perhaps 30 secs) and then the vehicle light will turn red.

And what is the "egc"? Did you mean to write EG4?

Thank you

 

[Dark-Fx]

I'm getting a charging error on my Rivian 2025 Large Pack R1T when trying to charge via my Rivian portable charger cable into an EV-rated NEMA 14-50 outlet powered by EG4 inverter and EG4 batteries (offgrid house). This is the second red charging light event in the last 2 weeks...

A couple of weeks ago, I was getting errors (red light on truck and on charging cable) with the 240v outlet, and then also with the 110v outlet, but restarting the inverter seemed to have solved the problem.

This time, I'm just getting the red light on the truck, and even after restarting the inverter and batteries, and also doing a hard reset on the truck, no luck... though I am able to charge on the 110v outlet at the moment...

Grrrrr.

Not sure at the moment if this is an issue on the power source side (EG4 inverter and batteries) or on the vehicle side.

If anyone has any tips, please share, thanks in advance!

I've seen this happen when the power coming into the vehicle is interrupted or very unclean due to a contactor with weak springs and it gets bumped.

 

[Mellowyellow]

Have managed to charge all night on 110v.
Today will test vehicle charging at a DC fast charger and a public AC level 2 charger.
By the way, I have tried throttling down amps when charging my vehicle at home on 240v/ level 2.

If you're using the portable charger and it will allow all night at 110V, another possible failure point is the 240v pigtail. If you're not mounting the portable charger and instead letting it hang, the pigtail connection will gradually loosen. If the 110v is fine, it is because you rarely use that pigtail and it has a more solid connection.

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